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Average customer rating of 5 out of 5 based on 1 total testimonials

Better than the rest.

Posted By CrEaTuRe.
Rating 5 out of 5

I've used razor knives and scissors to cut flex & the inner insulation on metal duct work. This knife is my saving grace. Use the serrated side for flex & the blade for the inner insulation & you'll be a happy installer. It never gets hung up or cuts out of line. I have a pocket sharpener that I keep on me at all times & it works perfectly.